The MX40000PRO is a double-balanced mixer that can be used as an upconverter or downconverter in satellite uplinks/downlinks, electronic warfare, millimeter-wave technology, receiver development, and general microwave lab applications. It has a frequency range of 18 to 41 GHz RF and 10 to 18 GHz IF and an integrated LO generator that operates from 25 to 40 GHz. Conversion loss is 12 dB, LO-RF isolation is 35 dB, and LO-IF isolation is 30 dB. It includes a low-noise oven-controlled reference source and the LO frequency can be set using front controls or a Windows PC application via USB or Ethernet. The mixer has a bright OLED display and a simple and effective control interface. It is available in a 4.15 x 5.0 x 1.15 inch module with 2.92 mm connectors.